Struct rocket::shield::Shield

source ·
pub struct Shield { /* private fields */ }
Expand description

A Fairing that injects browser security and privacy headers into all outgoing responses.

§Usage

To use Shield, first construct an instance of it. To use the default set of headers, construct with Shield::default(). For an instance with no preset headers, use Shield::new(). To enable an additional header, use enable(), and to disable a header, use disable():

use rocket::shield::Shield;
use rocket::shield::{XssFilter, ExpectCt};

// A `Shield` with the default headers:
let shield = Shield::default();

// A `Shield` with the default headers minus `XssFilter`:
let shield = Shield::default().disable::<XssFilter>();

// A `Shield` with the default headers plus `ExpectCt`.
let shield = Shield::default().enable(ExpectCt::default());

// A `Shield` with only `XssFilter` and `ExpectCt`.
let shield = Shield::default()
    .enable(XssFilter::default())
    .enable(ExpectCt::default());

Then, attach the instance of Shield to your application’s instance of Rocket:

rocket::build()
    // ...
    .attach(shield)

The fairing will inject all enabled headers into all outgoing responses unless the response already contains a header with the same name. If it does contain the header, a warning is emitted, and the header is not overwritten.

§TLS and HSTS

If TLS is configured and enabled when the application is launched in a non-debug profile, HSTS is automatically enabled with its default policy and a warning is logged. To get rid of this warning, explicitly Shield::enable() an Hsts policy.

Implementations§

source§

impl Shield

source

pub fn new() -> Self

Returns an instance of Shield with no headers enabled.

§Example
use rocket::shield::Shield;

let shield = Shield::new();
source

pub fn enable<P: Policy>(self, policy: P) -> Self

Enables the policy header policy.

If the policy was previously enabled, the configuration is replaced with that of policy.

§Example
use rocket::shield::Shield;
use rocket::shield::NoSniff;

let shield = Shield::new().enable(NoSniff::default());
source

pub fn disable<P: Policy>(self) -> Self

Disables the policy header policy.

§Example
use rocket::shield::Shield;
use rocket::shield::NoSniff;

let shield = Shield::default().disable::<NoSniff>();
source

pub fn is_enabled<P: Policy>(&self) -> bool

Returns true if the policy P is enabled.

§Example
use rocket::shield::Shield;
use rocket::shield::{Permission, NoSniff, Frame};
use rocket::shield::{Prefetch, ExpectCt, Referrer};

let shield = Shield::default();

assert!(shield.is_enabled::<NoSniff>());
assert!(shield.is_enabled::<Frame>());
assert!(shield.is_enabled::<Permission>());

assert!(!shield.is_enabled::<Prefetch>());
assert!(!shield.is_enabled::<ExpectCt>());
assert!(!shield.is_enabled::<Referrer>());

Trait Implementations§

source§

impl Clone for Shield

source§

fn clone(&self) -> Self

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
source§

impl Default for Shield

source§

fn default() -> Self

Returns a new Shield instance. See the table for a description of the policies used by default.

§Example
use rocket::shield::Shield;

let shield = Shield::default();
source§

impl Fairing for Shield

source§

fn info(&self) -> Info

Returns an Info structure containing the name and Kind of this fairing. The name can be any arbitrary string. Kind must be an ord set of Kind variants. Read more
source§

fn on_liftoff<'life0, 'life1, 'async_trait>( &'life0 self, rocket: &'life1 Rocket<Orbit>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

The liftoff callback. Read more
source§

fn on_response<'r, 'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _: &'r Request<'life1>, response: &'life2 mut Response<'r>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'r: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

The response callback. Read more
source§

fn on_ignite<'life0, 'async_trait>( &'life0 self, rocket: Rocket<Build>, ) -> Pin<Box<dyn Future<Output = Result> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

The ignite callback. Returns Ok if ignition should proceed and Err if ignition and launch should be aborted. Read more
source§

fn on_request<'life0, 'life1, 'life2, 'life3, 'life4, 'async_trait>( &'life0 self, _req: &'life1 mut Request<'life2>, _data: &'life3 mut Data<'life4>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait, 'life4: 'async_trait,

The request callback. Read more
source§

fn on_shutdown<'life0, 'life1, 'async_trait>( &'life0 self, _rocket: &'life1 Rocket<Orbit>, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

The shutdown callback. Read more

Auto Trait Implementations§

§

impl !Freeze for Shield

§

impl RefUnwindSafe for Shield

§

impl Send for Shield

§

impl Sync for Shield

§

impl Unpin for Shield

§

impl UnwindSafe for Shield

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> AsAny for T
where T: Any,

source§

fn as_any_ref(&self) -> &(dyn Any + 'static)

source§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

source§

impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

source§

fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

source§

impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

source§

fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> CloneToUninit for T
where T: Clone,

source§

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> IntoEither for T

source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

impl<T> Paint for T
where T: ?Sized,

source§

fn fg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the foreground set to value.

This method should be used rarely. Instead, prefer to use color-specific builder methods like red() and green(), which have the same functionality but are pithier.

§Example

Set foreground color to white using fg():

use yansi::{Paint, Color};

painted.fg(Color::White);

Set foreground color to white using white().

use yansi::Paint;

painted.white();
source§

fn primary(&self) -> Painted<&T>

Returns self with the fg() set to Color::Primary.

§Example
println!("{}", value.primary());
source§

fn fixed(&self, color: u8) -> Painted<&T>

Returns self with the fg() set to Color::Fixed.

§Example
println!("{}", value.fixed(color));
source§

fn rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

Returns self with the fg() set to Color::Rgb.

§Example
println!("{}", value.rgb(r, g, b));
source§

fn black(&self) -> Painted<&T>

Returns self with the fg() set to Color::Black.

§Example
println!("{}", value.black());
source§

fn red(&self) -> Painted<&T>

Returns self with the fg() set to Color::Red.

§Example
println!("{}", value.red());
source§

fn green(&self) -> Painted<&T>

Returns self with the fg() set to Color::Green.

§Example
println!("{}", value.green());
source§

fn yellow(&self) -> Painted<&T>

Returns self with the fg() set to Color::Yellow.

§Example
println!("{}", value.yellow());
source§

fn blue(&self) -> Painted<&T>

Returns self with the fg() set to Color::Blue.

§Example
println!("{}", value.blue());
source§

fn magenta(&self) -> Painted<&T>

Returns self with the fg() set to Color::Magenta.

§Example
println!("{}", value.magenta());
source§

fn cyan(&self) -> Painted<&T>

Returns self with the fg() set to Color::Cyan.

§Example
println!("{}", value.cyan());
source§

fn white(&self) -> Painted<&T>

Returns self with the fg() set to Color::White.

§Example
println!("{}", value.white());
source§

fn bright_black(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightBlack.

§Example
println!("{}", value.bright_black());
source§

fn bright_red(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightRed.

§Example
println!("{}", value.bright_red());
source§

fn bright_green(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightGreen.

§Example
println!("{}", value.bright_green());
source§

fn bright_yellow(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightYellow.

§Example
println!("{}", value.bright_yellow());
source§

fn bright_blue(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightBlue.

§Example
println!("{}", value.bright_blue());
source§

fn bright_magenta(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightMagenta.

§Example
println!("{}", value.bright_magenta());
source§

fn bright_cyan(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightCyan.

§Example
println!("{}", value.bright_cyan());
source§

fn bright_white(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightWhite.

§Example
println!("{}", value.bright_white());
source§

fn bg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the background set to value.

This method should be used rarely. Instead, prefer to use color-specific builder methods like on_red() and on_green(), which have the same functionality but are pithier.

§Example

Set background color to red using fg():

use yansi::{Paint, Color};

painted.bg(Color::Red);

Set background color to red using on_red().

use yansi::Paint;

painted.on_red();
source§

fn on_primary(&self) -> Painted<&T>

Returns self with the bg() set to Color::Primary.

§Example
println!("{}", value.on_primary());
source§

fn on_fixed(&self, color: u8) -> Painted<&T>

Returns self with the bg() set to Color::Fixed.

§Example
println!("{}", value.on_fixed(color));
source§

fn on_rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

Returns self with the bg() set to Color::Rgb.

§Example
println!("{}", value.on_rgb(r, g, b));
source§

fn on_black(&self) -> Painted<&T>

Returns self with the bg() set to Color::Black.

§Example
println!("{}", value.on_black());
source§

fn on_red(&self) -> Painted<&T>

Returns self with the bg() set to Color::Red.

§Example
println!("{}", value.on_red());
source§

fn on_green(&self) -> Painted<&T>

Returns self with the bg() set to Color::Green.

§Example
println!("{}", value.on_green());
source§

fn on_yellow(&self) -> Painted<&T>

Returns self with the bg() set to Color::Yellow.

§Example
println!("{}", value.on_yellow());
source§

fn on_blue(&self) -> Painted<&T>

Returns self with the bg() set to Color::Blue.

§Example
println!("{}", value.on_blue());
source§

fn on_magenta(&self) -> Painted<&T>

Returns self with the bg() set to Color::Magenta.

§Example
println!("{}", value.on_magenta());
source§

fn on_cyan(&self) -> Painted<&T>

Returns self with the bg() set to Color::Cyan.

§Example
println!("{}", value.on_cyan());
source§

fn on_white(&self) -> Painted<&T>

Returns self with the bg() set to Color::White.

§Example
println!("{}", value.on_white());
source§

fn on_bright_black(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightBlack.

§Example
println!("{}", value.on_bright_black());
source§

fn on_bright_red(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightRed.

§Example
println!("{}", value.on_bright_red());
source§

fn on_bright_green(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightGreen.

§Example
println!("{}", value.on_bright_green());
source§

fn on_bright_yellow(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightYellow.

§Example
println!("{}", value.on_bright_yellow());
source§

fn on_bright_blue(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightBlue.

§Example
println!("{}", value.on_bright_blue());
source§

fn on_bright_magenta(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightMagenta.

§Example
println!("{}", value.on_bright_magenta());
source§

fn on_bright_cyan(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightCyan.

§Example
println!("{}", value.on_bright_cyan());
source§

fn on_bright_white(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightWhite.

§Example
println!("{}", value.on_bright_white());
source§

fn attr(&self, value: Attribute) -> Painted<&T>

Enables the styling Attribute value.

This method should be used rarely. Instead, prefer to use attribute-specific builder methods like bold() and underline(), which have the same functionality but are pithier.

§Example

Make text bold using attr():

use yansi::{Paint, Attribute};

painted.attr(Attribute::Bold);

Make text bold using using bold().

use yansi::Paint;

painted.bold();
source§

fn bold(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Bold.

§Example
println!("{}", value.bold());
source§

fn dim(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Dim.

§Example
println!("{}", value.dim());
source§

fn italic(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Italic.

§Example
println!("{}", value.italic());
source§

fn underline(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Underline.

§Example
println!("{}", value.underline());

Returns self with the attr() set to Attribute::Blink.

§Example
println!("{}", value.blink());

Returns self with the attr() set to Attribute::RapidBlink.

§Example
println!("{}", value.rapid_blink());
source§

fn invert(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Invert.

§Example
println!("{}", value.invert());
source§

fn conceal(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Conceal.

§Example
println!("{}", value.conceal());
source§

fn strike(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Strike.

§Example
println!("{}", value.strike());
source§

fn quirk(&self, value: Quirk) -> Painted<&T>

Enables the yansi Quirk value.

This method should be used rarely. Instead, prefer to use quirk-specific builder methods like mask() and wrap(), which have the same functionality but are pithier.

§Example

Enable wrapping using .quirk():

use yansi::{Paint, Quirk};

painted.quirk(Quirk::Wrap);

Enable wrapping using wrap().

use yansi::Paint;

painted.wrap();
source§

fn mask(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Mask.

§Example
println!("{}", value.mask());
source§

fn wrap(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Wrap.

§Example
println!("{}", value.wrap());
source§

fn linger(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Linger.

§Example
println!("{}", value.linger());
source§

fn clear(&self) -> Painted<&T>

👎Deprecated since 1.0.1: renamed to resetting() due to conflicts with Vec::clear(). The clear() method will be removed in a future release.

Returns self with the quirk() set to Quirk::Clear.

§Example
println!("{}", value.clear());
source§

fn resetting(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Resetting.

§Example
println!("{}", value.resetting());
source§

fn bright(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Bright.

§Example
println!("{}", value.bright());
source§

fn on_bright(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::OnBright.

§Example
println!("{}", value.on_bright());
source§

fn whenever(&self, value: Condition) -> Painted<&T>

Conditionally enable styling based on whether the Condition value applies. Replaces any previous condition.

See the crate level docs for more details.

§Example

Enable styling painted only when both stdout and stderr are TTYs:

use yansi::{Paint, Condition};

painted.red().on_yellow().whenever(Condition::STDOUTERR_ARE_TTY);
source§

fn new(self) -> Painted<Self>
where Self: Sized,

Create a new Painted with a default Style. Read more
source§

fn paint<S>(&self, style: S) -> Painted<&Self>
where S: Into<Style>,

Apply a style wholesale to self. Any previous style is replaced. Read more
source§

impl<T> Same for T

source§

type Output = T

Should always be Self
source§

impl<T> ToOwned for T
where T: Clone,

source§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

source§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<T, U> Upcast<T> for U
where T: UpcastFrom<U>,

source§

fn upcast(self) -> T

source§

impl<T, B> UpcastFrom<Counter<T, B>> for T

source§

fn upcast_from(value: Counter<T, B>) -> T

source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

source§

fn vzip(self) -> V

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more